All categories

2 years ago

What is the inverse of( 10x-2)23

Mathematics

1 answer:

shtirl [24]2 years ago

8 0

This is the answer!

You might be interested in

The solar panels on the Jordan's home generate electricity. During the month of August, the Jordan family used 570 kilowatt hou

irina [24]

$0.oo dollars the salar panal cause the sun to evaporate

7 0

3 years ago

Joel gives 1/3 of his baseball cards to his sister. Write a fraction that is equivalent to 1/3.

Neporo4naja [7]

Answer: 2/6

Step-by-step explanation:

One can be 2/6 because if multiply 1/3 by x for the numerator and the denomanator it is 2/6 and 2/6 is equivalent to 1/3

4 0

2 years ago

Find the general solution to the differential equation modeling how a person learns:

Luda [366]

Here we want to solve differential equations, we will see that the general solution is:

$y = A*e^{-t} + 100$

We want to solve the differential equation:

$\frac{dy}{dt} = 100 - y$

From this is pretty clear that y is an exponential function, with an exponent of -1*t.

We can write it generally as:

$y = A*e^{-t} + B\\\\\frac{dy}{dt} = -A*e^{-t}$

Then if we set B = 100 we get:

$y = A*e^{-t} + 100\\\\\frac{dy}{dt} = -A*e^{-t} \\\\\frac{dy}{dt} = -A*e^{-t} - 100 + 100 = -y + 100$

So we just found the general form of the function.

Now we have two cases:

A) y(0) = 35

$y(0) = A*e^{-0} + 100 = 35\\= A + 100 = 35\\\\A = 35 - 100 = -65$

In this case, the function is:

$y = -65*e^{-t} + 100$

B) y(0) = 125

$125 = A*e^0 + 100\\\\\125 - 100 = A\\\\25 = A$

In this case, the function is:

$y = 25*e^{-t} + 100$

Now we want to see which one of the two can represent how a person learns. Just look at the graph below:

The green line is the one for y(0) = 35, and the blue one is for y(0) = 125.

Notice that for small values of t, the blue function is really large, thus it can't really model how a person learns (is larger for smaller values of t than for larger values).

So y(0) = 35 represents better how a person can learn (but not exactly, because you can see that it eventually becomes almost constant, which is something that really does not happen) so the correct option is D: none of the above.

If you want to learn more, you can read:

brainly.com/question/353770